The search for Jonathan Bryant has included stops in Manhattan and Jamaica, Queens, Mount Vernon Capt. Michael Goldman said. Fliers are also being handed out in Bay Plaza in the Bronx — an area the teen has frequented before.

The teen is considered functional and described as 5-foot-4 tall and approximately 110 pounds, with black hair and brown eyes.

He was wearing a white T-shirt with "Cozumel" written on it, white shorts, gray socks and red and black sneakers and he may be in need of medical attention, the New York State Criminal Justice Services website reported.

Goldman said the 15-year-old has been reported missing "a few times" to police in the past. He couldn't immediately provide an exact number, but did say the department was not looking at filing criminal charges against the family.

On previous occasions, Bryant, who has Asperger's Syndrome and is known to be fond of trains, was found at Bay Plaza and other city locations accessible by train or subway lines.

As of Monday afternoon, Bryant had not contacted his mother, the police captain said, and there had not been any possible sightings reported in Mount Vernon.

Mount Vernon police have also reached out to the New York City police department and contacted the National Center for Missing & Exploited Children.

Bryant was reported missing at about 1 a.m. Friday when his mother returned to their Mount Vernon home and realized he was not there. She told police he was last seen at 2:30 p.m. Thursday.

Anyone with information on his whereabouts is asked to call the Mount Vernon police at 914-655-2500 or 911.